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STM32MP2 Hantro VPU V4L2 H.264/VP8 Encoding & Decoding Usage Inquiry

SullyNiu
Associate III

‎2026-01-28 6:47 PM - edited ‎2026-01-28 7:00 PM

Product:

  • MCU/SoC: STM32MP2

Description:
In our ST Linux environment, the hantro-vpu driver registers:

/dev/video5 -> VDEC (H.264/VP8 Decoder)
/dev/video6 -> VENC (H.264/VP8 Encoder)

 

We want to implement direct V4L2 API usage for H.264/VP8 encoding and decoding, without using GStreamer.

Specific Questions:

  1.  Are there official minimal examples or demos using pure V4L2 API for H.264 / VP8 encoding/decoding?
  2. DMA Usage: Is it possible to use DMA for input/output buffers in V4L2 mem2mem mode on STM32MP2 Hantro VPU? If yes, what is the recommended configuration and constraints?

 

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